Disclaimer: I do not own a metal brake, only a big Wilton vise, a cutting wheel, a HF drill press and plenty of blocks of wood.
I set out to make a tach and power switch bracket for my drag bike project, started with this
Lots of finish grinding, hand-filing and wire brushing later
That bracket looks great.
I'd like to source some of the alum sheet you started with, do you have a PN and source code ?